What kind of paint will be used for color coated aluminum coils?
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At present, Color Aluminum's industrial paint used in the production of color-coated aluminum coils is generally oil-based paint. The so-called oil-based paint is also solvent-hydrophilic, mainly including the following five: 1. Acrylic: The paint film has high hardness, but poor flexibility (T bending difference); suitable for non-processed parts and high hardness index coatings, such as automotive paint, currently our sheet aluminum foil is used; 2. Polyester: The hardness of the paint film is worse than that of acrylic acid, but the flexibility and processability are good (good T-bend, good processing performance); the current use of steel coil and aluminum coils is more common; 3. Polyurethane: The paint film has good toughness, good adhesion and abrasion resistance, but is easy to yellow and powder; it is generally used in the leather industry and furniture industry, and the rolled aluminum system is generally used as a primer (our fluorocarbon primer); jinhu supply professional and honest service. 4.Epoxy: The paint film has good adhesion, corrosion resistance and abrasion resistance, but high brittleness (T bending difference); it is generally used in floor paint and anticorrosion industry, and the aluminum coil is generally used for back paint (polyurethane foam, Viscose, etc.); 5. Fluorocarbon: The paint film has excellent corrosion resistance, long weather resistance and strong adhesion, but the paint film is relatively soft. It is widely used in the field of super weather resistance. The rolled aluminum coils generally uses 2 fluorine (PVDF) and 3 fluorine (FEVE).
“Painting aluminum trim coil” is often asked about since aluminum siding and trim has been applied in decoration of so many houses in the past years. Learning about painting process in the workshop helps you to fully understand steps you should do at home to repair items made of trim aluminum coil.
Before getting an aluminum trim coil roll painted, manufacturers would first clean the roll surface completely, either in physical or chemical ways. Sometimes mechanical equipment is necessary, too. The purpose is to remove any materials that might prevent the following anodizing step from going on effectively. A completely cleaned surface of aluminium coil will obtain a thick condense layer of anodizing film on the surface, but there will be micro holes on the surface, which should be concealed to make the film stronger and harder. To paint the coil, pvdf, pe and pvc paints are all applicable. These paints are divided into primers and finishing coats. Multiple painting produces lasting color coated aluminum coil in severe natural conditions.
If you need to paint aluminum trim coil at home, the steps are similar in exception to the anodizing part. You should first scrub the aluminum part to be painted with soapy water by combining 1 gallon of warm water and 1/4 cup of dish soap in a bucket. Then then scrub down the entire aluminum surface to remove dirt and residue with the brush soaked with soapy water. Wipe the aluminum with a clean, damp cloth, and if there are still residues on the aluminium surface, brush it again until it gets fully cleaned. After the surface gets dry, you should begin your painting. Now the point is, do you need a primer? If you want your paint work last as long as possible, the answer is yes, for a primer functions as a secondary protection line of the aluminium trim coil. Make sure the primer you choose is safe for use on aluminum. Do not move on the next step until the primer is dry. Then dip a paintbrush into the paint, and brush the paint onto the aluminum using long, even strokes. Never allow anyone touch the aluminium until the paint gets dry.
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